<?php
if ( 'POST' != $_SERVER['REQUEST_METHOD'] ) {
	header('Allow: POST');
	header('HTTP/1.1 405 Method Not Allowed');
	header('Content-Type: text/plain');
	exit;
}

require_once( dirname(__FILE__) . '/../../../../wp-load.php' ); // 此 comments-ajax.php 位于主题目录,所以位置不同

nocache_headers();
$comment_post_ID = isset( $_POST['comment_post_ID'] ) ? (int) $_POST['comment_post_ID'] : 0;
$status = $wpdb->get_row( $wpdb->prepare("SELECT post_status, comment_status FROM $wpdb->posts WHERE ID = %d", $comment_post_ID) );

if ( empty($status->comment_status) ) {
	do_action('comment_id_not_found', $comment_post_ID);
	err(__('无效评论！'));
} elseif ( !comments_open($comment_post_ID) ) {
	do_action('comment_closed', $comment_post_ID);
	err(__('评论已关闭！'));
} elseif ( in_array($status->post_status, array('draft', 'future', 'pending') ) ) {
	do_action('comment_on_draft', $comment_post_ID);
	err(__('无效评论！'));
} elseif ( 'trash' == $status->post_status ) {
	do_action('comment_on_trash', $comment_post_ID);
	err(__('无效评论！'));
} elseif ( post_password_required($comment_post_ID) ) {
	do_action('comment_on_password_protected', $comment_post_ID);
	err(__('密码保护！'));
} else {
	do_action('pre_comment_on_post', $comment_post_ID);
}

$comment_author = ( isset($_POST['author']) ) ? trim(strip_tags($_POST['author'])) : null;
$comment_author_email = ( isset($_POST['email']) ) ? trim($_POST['email']) : null;
$comment_author_url = ( isset($_POST['url']) ) ? trim($_POST['url']) : null;
$comment_content = ( isset($_POST['comment']) ) ? trim($_POST['comment']) : null;
$edit_id = ( isset($_POST['edit_id']) ) ? $_POST['edit_id'] : null;
$user = wp_get_current_user();

if ( $user->ID ) {
	if ( empty( $user->display_name ) )
	$user->display_name=$user->user_login;
	$comment_author = $wpdb->escape($user->display_name);
	$comment_author_email = $wpdb->escape($user->user_email);
	$comment_author_url = $wpdb->escape($user->user_url);
	if ( current_user_can('unfiltered_html') ) {
		if ( wp_create_nonce('unfiltered-html-comment_' . $comment_post_ID) != $_POST['_wp_unfiltered_html_comment'] ) {
			kses_remove_filters();
			kses_init_filters();
		}
	}
} else {
	if ( get_option('comment_registration') || 'private' == $status->post_status )
		err(__('请先登录，谢谢！'));
}

$comment_type = '';
if ( get_option('require_name_email') && !$user->ID ) {
	if ( 6 > strlen($comment_author_email) || '' == $comment_author )
		err( __('请输入必填项，谢谢！'));
	elseif ( !is_email($comment_author_email))
		err(__('暂不支持此邮箱，抱歉！'));
}
if ( '' == $comment_content )
	err(__('某人貌似什么都没说就点发布了。'));

// 错误提示
function err($ErrMsg) { header('HTTP/1.1 405 Method Not Allowed'); echo $ErrMsg; exit; }

// 检查重复评论
$dupe = "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = '$comment_post_ID' AND ( comment_author = '$comment_author' ";
if ( $comment_author_email ) $dupe .= "OR comment_author_email = '$comment_author_email' ";
$dupe .= ") AND comment_content = '$comment_content' LIMIT 1";
if ( $wpdb->get_var($dupe) ) {
	err(__('重复评论了哦？'));
}

// 检查评论太快
if ( $lasttime = $wpdb->get_var( $wpdb->prepare("SELECT comment_date_gmt FROM $wpdb->comments WHERE comment_author = %s ORDER BY comment_date DESC LIMIT 1", $comment_author) ) ) {
$time_lastcomment = mysql2date('U', $lasttime, false);
$time_newcomment  = mysql2date('U', current_time('mysql', 1), false);
$flood_die = apply_filters('comment_flood_filter', false, $time_lastcomment, $time_newcomment);
if ( $flood_die ) {
	err(__('亲，您太心急了哇。'));
	}
}

$comment_parent = isset($_POST['comment_parent']) ? absint($_POST['comment_parent']) : 0;
$commentdata = compact('comment_post_ID', 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_content', 'comment_type', 'comment_parent', 'user_ID', 'comment_approved');

// 检查评论是否被编辑, 更新或新建评论
if ( $edit_id ){
	$comment_id = $commentdata['comment_ID'] = $edit_id;
	wp_update_comment( $commentdata );
} else {
	$comment_id = wp_new_comment( $commentdata );
}
$comment = get_comment($comment_id);
if ( !$user->ID ) {
	$comment_cookie_lifetime = apply_filters('comment_cookie_lifetime', 30000000);
	setcookie('comment_author_' . COOKIEHASH, $comment->comment_author, time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN);
	setcookie('comment_author_email_' . COOKIEHASH, $comment->comment_author_email, time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN);
	setcookie('comment_author_url_' . COOKIEHASH, esc_url($comment->comment_author_url), time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN);
}

$comment_depth = 1;  //准备评论class属性
$tmp_c = $comment;
while($tmp_c->comment_parent != 0){
	$comment_depth++;
	$tmp_c = get_comment($tmp_c->comment_parent);
}

//以下是评论内容预览, 按需修改
?>
<li id="li-comment-<?php comment_ID(); ?>" class="comment-content">
	<div id="comment-<?php comment_ID(); ?>" class="comment-body">
		<?php $size = get('ini_avatar')? get('ini_avatar'): 40; echo get_avatar($comment, $size);?>
		<strong><?php printf( __( '%s'), get_comment_author_link() ); ?></strong>
		<div class="comment-text<?php if($comment->user_id == 1) echo " admin"?>">
			<?php comment_text(); ?>
<?php if ( $comment->comment_approved == '0' ){ ?>
			<span style="color:#C00;font-style:inherit">您的评论正在等待审核中...</span><br />
<?php } ?>
			<span class="datetime actions"><?php comment_date('Y-m-d') ?> <?php comment_time() ?></span>
		</div>
	</div>